when to get paid? At what point do you know the pos. flux is real profit instead of variance? Approximately 4x N0 is when you can take your paycheck from blackjack. If a player has no idea of when he has overcome variance, how can he properly take his profits?
You are correct, a counter does not need to know the math, but you do need to know more than EV, how to keep a count and a few indexes. What good is positive EV if you and a team of a dozen people can never play enough to get paid. Ever wonder why certain games that seem playable by a novice are considered unplayable by a pro?
You have a good start in your quest for enough knowledge to count profitably, but you do have a bit more to learn. If you can't or don't want to learn the math (I didn't either) Get CVData and spend a few weeks playing around with it and understanding what it is telling you.
If you don't understand N0, you have no way to know when your BR has grown artificially (pos. varience) or when it is true profit (earned EV at 4x N0). Various teams "break the bank" at different times, but a solo counter needs to understand more than a few indexes and how to keep a count.
My guess is that you have read less than a dozen books and haven't digested the library at blackjackforumonline and the archives at BJ21. If you do, you will see the rest of the big picture.
Good "Luck"
-Paradox